A re-examination of primary school descriptions by Anglo, Greek, and Italian speakers in the Sydney sociolinguistic survey focuses on the interactional patterns that characterize the elicitation of a particular text type. Two aspects of the interaction are analyzed—the type or mixture of types of questions asked by the fieldworker within the same or different turns at talk, and the response behavior of the speaker—in order to determine what part of the variability in the text data is the result of the interaction process itself rather than of the characteristics and intentions of the respondents. We hypothesize that a constant feature of every interaction is the negotiation of tension between interviewer and speaker. The results confirm that varying the details of the interviewer's questioning strategy, even when the referential content of the questions seem uniform, can have strong and predictable effects on the nature of the speaker's response. We also demonstrate links among stylistic variation, interactional patterning, and ethnicity differentiation. Where differences in behavior in the same setting have often been attributed to learned patterns of different ethnic or social groups, much of this may instead be due to different degrees of interactional tension. We show that less negotiation of interactional tension is required when the interviewer and the speaker share a set of sociolinguistic assumptions through common ethnic identity, and more negotiation is required when this is not the case.